Insights

Research

Studies of outreach, responses and the work behind them.

Lineer Research

3 pieces

Human reply rates within 14 days: templated 1.20%, half-AI 1.61%, fully AI 2.02%.
Research

Does AI-written outreach get more replies?

AI-written campaigns drew more human replies in this sample. Templates drew more positive first replies. Here is what a sales team should measure.

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Positive first replies, cumulative across stages: 44 before follow-up, 69 after one, 73 after two.
Research

What happens after the first email?

Many replies arrived after a follow-up, including positive replies. See why sales teams should plan the sequence and measure reply quality.

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Human reply rates within 14 days: no website retrieval 0.96%, website retrieval 1.81%.
Research

Does more prospect research lead to better outreach?

Research activity alone did not reliably predict better replies. The useful question is whether the final message connects the prospect to the offer.

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The three launch papers examine the same September 2026 dataset. They are related observational analyses, not independent replications.